The Hayman Celebration. 3-10 p.m. A mini-folk festival tribute to the late Vic Heyman and his wife Reba. To benefit the Heyman Folk Scholarship Fund. Dr. Vic Heyman, who died on Jan. 6, 2009, of Parkinson's, was a Deputy Assistant Secretary of Defense in the 1960s who later started a direct-mail company in Rockville, Md., and became a noted figure in area folk music circles as a concert presenter. Tickets for the show range from $25 to $125. At the Historic Olney Theatre. Go to www.heymancelebration.org or call Sherry Panzer at 301-580-9401.